Fig. 2

Frequency distribution of rare alleles and nucleotide substitutions. a Observed frequency for the loci with different types of rare and intermediate alleles separately. b Distribution of rare alleles in 96 accessions at 939 loci. The x-axis represents the total number of occurrence of rare alleles per accession and the y-axis denotes the total number of accessions which contain the same number of occurrence. The expected number is estimated under the random occurrence model with all the accessions. c- d The relationship between relative rates of derived to ancient mutations and frequency of 5625 gSNP sites, the fixed mutations (c), and 8234 rSNPs sites (including nfSNP and dSNP) (d)